WO2015082308A1 - Sachet de tabac - Google Patents

Sachet de tabac Download PDF

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Publication number
WO2015082308A1
WO2015082308A1 PCT/EP2014/075830 EP2014075830W WO2015082308A1 WO 2015082308 A1 WO2015082308 A1 WO 2015082308A1 EP 2014075830 W EP2014075830 W EP 2014075830W WO 2015082308 A1 WO2015082308 A1 WO 2015082308A1
Authority
WO
WIPO (PCT)
Prior art keywords
pouch
closure strip
pocket
mouth
tobacco
Prior art date
Application number
PCT/EP2014/075830
Other languages
English (en)
Inventor
Alan Godden
Karen LOCKHART
Original Assignee
Jt International Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jt International Sa filed Critical Jt International Sa
Priority to ES14805854.8T priority Critical patent/ES2686720T3/es
Priority to EP14805854.8A priority patent/EP3076807B1/fr
Publication of WO2015082308A1 publication Critical patent/WO2015082308A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F23/00—Cases for tobacco, snuff, or chewing tobacco
    • A24F23/02—Tobacco pouches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/01—Ventilation or drainage of bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2205/00—Venting means

Definitions

  • the present invention relates to a tobacco pouch which can be used to store tobacco for long periods of time.
  • Tobacco for roll-your-own or make-your-own smoking items is typically stored in a sealed pouch made from a metallised or non-metallised material.
  • An example of such a pouch comprises a closure strip that seals the tobacco content for transport and which can be broken by a user to access the contents when necessary.
  • a first aspect of the invention provides a method of producing a pouch containing a fibrous material, wherein the pouch comprises a pocket having a mouth for providing access to the interior of the pocket; and a closure strip extending along the mouth, and wherein the method comprises the steps of: providing said pouch (which can be, for example, formed from a sheet of material); filling the pocket with a fibrous material via the mouth; and sealing the closure strip such that at least one channel is retained to allow for fluid communication between the interior and exterior of the pocket.
  • the closure strip is not resealable.
  • a second aspect of the invention provides pouch for containing a fibrous material, obtainable by the above-mentioned method.
  • a third aspect of the invention provides a heater bar for use in the method according to the first aspect.
  • Figure 1 illustrates a pouch according to the prior art wherein the closure strip is completely sealed all the way across its opening such that fluid cannot exchange between the interior and exterior of the pouch.
  • Figure 2 illustrates a pouch according to the invention comprising a channel in the closure strip which allows for fluid communication between the interior and exterior of the pouch.
  • Figure 3 illustrates a pouch according to the invention comprising two channels in the closure strip.
  • Figure 4 illustrates a cross-section of a pouch according to the invention.
  • Figure 5 illustrates a modified heater bar which is used in the method according to the invention to seal the pouches.
  • Figures 6 to 1 1 illustrate several comparisons between the pouch according to the invention and a known tobacco pouch.
  • Figure 1 shows a known tobacco metallised pouch 1 with a seal 4 that extends across the mouth 3.
  • the pouch 1 has a flap 6 that a user can fold over the mouth 3.
  • oxygen content decreases and carbon dioxide content increases on storage, which in turn gives rise to the tobacco generating a bad odour.
  • the present inventors have found that this is attributed to the fact that tobacco pouches are typically made from material having low gas permeability.
  • the present inventors have found that this effect is increased in warmer climates (i.e. above 27 °C) where the pouch is exposed to higher temperatures for extended periods. Therefore, the present inventors have found that by controlling the oxygen and carbon dioxide content within the pouch, the tobacco contained therein remains fresher for longer such that it can be stored over extended periods of time.
  • Figures 2 to 4 depict a pouch 1 for containing tobacco, having a closure strip 4 across the mouth 3 of the pouch wherein the mouth 3 is used to provide access to the pocket 2 where the tobacco is contained.
  • the closure strip 4 is sealed such that a channel 5 is retained.
  • the channel 5 allows for fluid communication between the interior and exterior of the pocket 2 which contains the tobacco.
  • an alternative embodiment of the present invention is depicted wherein the closure strip 4 comprises two channels 5.
  • the channels 5 are shown to be positioned towards one end of the closure strip 4.
  • the channels 5 can be positioned anywhere along the closure strip 4.
  • the closure strip 4 comprises at least one channel 5, although the closure strip 4 may comprise at least two channels 5 or at least three or five channels 5.
  • the channel 5 is positioned towards one end of the closure strip 4.
  • the channel 5 can be from 1 .0 % to 12.5 % of the length of the closure strip 4, preferably from 3.0 % to 9.0 %, most preferably from 3.5 % to 7.0 %.
  • the closure strip 4 comprises at least two (or more) channels
  • the total channel opening is from 1 .0 % to 12.5 % of the length of the closure strip 4, preferably from 3.0 % to 9.0 %, most preferably from 3.5 % to 7.0 %.
  • the channel 5 can be from 2 mm to 10 mm of the closure strip 4.
  • the channel is from 3 mm to 7 mm, and more preferably it is 5 mm.
  • the closure strip 4 comprises at least two (or more) channels, the total channel opening is from 3 mm to 7 mm, and preferably 5 mm.
  • the length of the closure strip 4 is from 65 mm to 145 mm. Most preferably, the length of the closure strip is from 70 mm to 80 mm, from 1 10 mm to 120 mm or from 130 mm to 140 mm.
  • the pouch 1 may further comprise a flap 6 which extends from the mouth 3 which is capable of folding over the pocket 2. When the pouch 1 is closed, the flap 6 is turned over against the pocket 2 of the pouch 1 and may be detachably connected with an adhesive.
  • the pouch can be formed from a sheet or film of a thermoplastic material such as a polyolefin, e.g. polyethylene.
  • a thermoplastic material such as a polyolefin, e.g. polyethylene.
  • the pouch is preferably made of a metallised material comprising oriented polypropylene (OPP), polyethylene terephthalate (PET), metallised polyethylene terephthalate (MPET), polyethylene (PE) or any combination thereof.
  • the pouch is made of a material comprising OPP, MPET and PE or PET, MPET and PE.
  • the pouch material typically has an oxygen transmission rate (OTR) in the range of from 1 to 800 cm 3 /m 2 /24h/1 atm, preferably from 1 to 400 cm 3 /m 2 /24h/1 atm, most preferably from 1 to 200 cm 3 /m 2 /24h/1 atm. OTR values can be calculated according to the standard method ASTM D3985.
  • the pouch material typically has a water vapour transmission rate (WVTR) of from 0.1 to 4 g/m 2 /day, preferably from 0.2 to 3.5 g/m 2 /day. WVTR values can be calculated according to the standard method ASTM F1249.
  • the method according to the present invention can comprise forming the pouch from a sheet of material, wherein the material is as described above.
  • the pouch is conventionally formed from a rectangular sheet of material which is folded over itself and welded together at the edges to form a pocket where the tobacco is to be kept. A portion of the rectangular sheet extending beyond the mouth of the pocket forms a flap capable of folding over the pocket. A strip of heat activatable glue is then placed along the mouth of the pocket thereby forming a strip capable of being closed.
  • the pocket of the pouch is filled with tobacco via the mouth.
  • the closure strip is then sealed such that at least one channel is retained to allow for fluid communication between the interior and exterior of the pocket of the pouch; for example, to allow for the exchange of oxygen and carbon dioxide between the interior and exterior of the pocket of the pouch.
  • the closure strip comprises heat activatable glue such that when the closure strip is heated, the glue is activated thereby providing a seal.
  • the closure strip comprising the heat activatable glue can be heated using a metal heater bar 8 as shown in Figure 5 which, when pressed against the closure strip, activates the glue.
  • the closure strip is not resealable.
  • the heater bar 8 comprises a recess 9 such that when pressed against the closure strip, a portion of the closure strip comprising the heat activatable glue is not heated. This portion which is not (or less) heated gives rise to the channel allowing for fluid communication between the interior and exterior of the pouch.
  • the recess will be 5 mm in width.
  • the heater bar may comprise more than one recess if more than one channel is required.
  • a recess is located along the closure strip which may comprise the heat activatable glue.
  • the term "recess" is to be understood as a portion of the closure strip deprived from heat activatable glue.
  • non sealed pouches with a closure strip where the heat activatable glue is not deposited continuously along the closure strip so that at least one air channel can be formed, i.e., the channel is formed at the position where no adhesive is present along the closure.
  • the closure strip Once the closure strip is sealed, it can be opened by a consumer by applying a force to either side of the pocket. However, when the seal has been broken, it cannot be resealed. Examples
  • the moisture content of tobacco in a metallised pouch of the present invention (as depicted in Figure 2) having a channel of 5 mm in the closure strip (1 15 mm long) was analysed over a period of six months.
  • the moisture content of tobacco in a completely sealed metallised pouch was analysed over the same period.
  • Tobacco moisture content was measured at 22°C/60%RH and 27°C/47%FtH using a Borgwaldt F21 instrument.
  • Figures 6 and 7 show that the moisture content of the tobacco in the sealed metallised pouch and the pouch according to the invention remains between the moisture tolerance levels for tobacco under both conditions.
  • the oxygen content within a metallised pouch of the present invention (as depicted in Figure 2) containing tobacco and having a channel of 5 mm in the closure strip was analysed over a period of six months.
  • the oxygen content within a completely sealed metallised pouch containing tobacco was analysed over the same period.
  • the oxygen content was measured at 22°C/60%FtH and 27°C/47%FtH using a PBI Dansensor Checkpoint Handled Gas Analyser. It can be seen, from Figures 8 and 9, that oxygen content decreases more rapidly at 27°C/47%FtH than at 22°C/60%FtH when the pouch is completely sealed. However, it can be seen that the oxygen content within a pouch according to the invention remains consistent over the six-month period.
  • the carbon dioxide content within a metallised pouch of the present invention (as depicted in Figure 2) containing tobacco and having a channel of 5 mm in the closure strip was analysed over a period of six months.
  • the carbon dioxide content within a completely sealed metallised pouch containing tobacco was analysed over the same period.
  • the carbon dioxide content was measured at 22°C/60%RH and 27°C/47%RH using a PBI Dansensor Checkpoint Handled Gas Analyser.
  • the unacceptable aroma is a direct result of a lack of oxygen and generation of carbon dioxide within the pouch containing tobacco.
  • the pouch of the invention maintains an ideal aerobic environment for the tobacco and therefore the unacceptable aroma does not arise.
  • the oxygen content in the pouch decreases rapidly to zero and the carbon dioxide content increases steadily (these trends are enhanced at higher temperatures and lower humidity) resulting in an anaerobic environment and therefore generation of the aforementioned unacceptable aroma.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Abstract

La présente invention concerne un sachet et un procédé de production du sachet (1) contenant une matière fibreuse, le procédé consistant à fournir un sachet (1) comprenant une poche (2) ayant un ouverture (3) pour fournir un accès à l'intérieur de la poche (2) et ayant une bande de fermeture (4) s'étendant le long de l'ouverture (3) ; remplir la poche (2) avec une matière fibreuse par l'intermédiaire de l'ouverture (3) ; et sceller la bande de fermeture (4) de telle sorte que l'au moins un canal (5) est retenu pour permettre une communication fluidique entre l'intérieur et l'extérieur de la poche(2).
PCT/EP2014/075830 2013-12-05 2014-11-27 Sachet de tabac WO2015082308A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES14805854.8T ES2686720T3 (es) 2013-12-05 2014-11-27 Bolsa de tabaco
EP14805854.8A EP3076807B1 (fr) 2013-12-05 2014-11-27 Blague à tabac

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP13195928 2013-12-05
EP13195928.0 2013-12-05

Publications (1)

Publication Number Publication Date
WO2015082308A1 true WO2015082308A1 (fr) 2015-06-11

Family

ID=49816783

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/075830 WO2015082308A1 (fr) 2013-12-05 2014-11-27 Sachet de tabac

Country Status (3)

Country Link
EP (1) EP3076807B1 (fr)
ES (1) ES2686720T3 (fr)
WO (1) WO2015082308A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU436866B2 (en) * 1968-07-01 1973-06-14 Focke Heinz Pouch made from plastics sheets more particularly for holding tobacco
BE885932A (fr) * 1979-10-29 1981-02-16 Raackmanns Fab As Blague a tabac comprenant une partie en forme de boite et procede pour sa fabrication
GB2191938A (en) * 1986-06-28 1987-12-31 Focke & Co Pouch
US20050079308A1 (en) * 2003-10-08 2005-04-14 Kazuya Tanaka Evacuable bag
EP2000411A1 (fr) * 2007-06-04 2008-12-10 Sealed Air S.A.S. Dispositif de thermoscellage et découpe
US20090226573A1 (en) * 2008-03-07 2009-09-10 Alejandro Gonzalez Leon Package for granular compositions
EP2532513A2 (fr) * 2011-06-08 2012-12-12 Focke & Co. (GmbH & Co. KG) Sachet pour tabac ainsi que procédé et dispositif de fabrication
EP2567907A1 (fr) * 2011-09-05 2013-03-13 Nordenia Deutschland Halle GmbH Sachet à tabac

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU436866B2 (en) * 1968-07-01 1973-06-14 Focke Heinz Pouch made from plastics sheets more particularly for holding tobacco
BE885932A (fr) * 1979-10-29 1981-02-16 Raackmanns Fab As Blague a tabac comprenant une partie en forme de boite et procede pour sa fabrication
GB2191938A (en) * 1986-06-28 1987-12-31 Focke & Co Pouch
US20050079308A1 (en) * 2003-10-08 2005-04-14 Kazuya Tanaka Evacuable bag
EP2000411A1 (fr) * 2007-06-04 2008-12-10 Sealed Air S.A.S. Dispositif de thermoscellage et découpe
US20090226573A1 (en) * 2008-03-07 2009-09-10 Alejandro Gonzalez Leon Package for granular compositions
EP2532513A2 (fr) * 2011-06-08 2012-12-12 Focke & Co. (GmbH & Co. KG) Sachet pour tabac ainsi que procédé et dispositif de fabrication
EP2567907A1 (fr) * 2011-09-05 2013-03-13 Nordenia Deutschland Halle GmbH Sachet à tabac

Also Published As

Publication number Publication date
EP3076807B1 (fr) 2018-06-13
ES2686720T3 (es) 2018-10-19
EP3076807A1 (fr) 2016-10-12

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